ATNI files 8-K; Exhibit 99.1 press release for period ended Sep 30, 2025

Rhea-AI Filing Summary

ATN International (ATNI) furnished an 8-K announcing it issued a press release with financial results for the three and nine months ended September 30, 2025. The press release is included as Exhibit 99.1 and is expressly furnished, not filed, under the Exchange Act. The report is dated November 5, 2025 and was signed by Chief Financial Officer Carlos Doglioli.

8-K Event Classification

2 items: 2.02, 9.01

2 items

Item 2.02 Results of Operations and Financial Condition Financial

Disclosure of earnings results, typically an earnings press release or preliminary financials.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

Understanding 8-K Material Events →

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D. C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 5, 2025

ATN INTERNATIONAL, INC.

(Exact name of registrant as specified in its charter)

Delaware		001-12593		47-0728886
(State or other		(Commission File Number)		(IRS Employer
jurisdiction of incorporation)				Identification No.)

500 Cummings Center

Beverly, MA 01915

(Address of principal executive offices and zip code)

(978) 619-1300

(Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Title of Each Class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock, par value $.01 per share		ATNI		The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 2.02 Results of Operations and Financial Condition.

On November 5, 2025, ATN International, Inc. (the “Company”) issued a press release announcing financial results for the three and nine months ended September 30, 2025. A copy of the press release is furnished herewith as Exhibit 99.1.

Exhibit 99.1 is furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing made by the Company under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 9.01 Financial Statements and Exhibits.

(d)	Exhibits
99.1	Press Release of the Company, dated November 5, 2025
104	Cover Page Data File (formatted as inline XBRL document)

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	ATN INTERNATIONAL, INC.
	By:	/s/ Carlos Doglioli
		Carlos Doglioli
		Chief Financial Officer
Dated November 5, 2025

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FAQ

What did ATNI announce in this Form 8-K?

ATN International announced it issued a press release with financial results for the three and nine months ended September 30, 2025.

Which exhibit contains the press release for ATNI?

Exhibit 99.1 contains the press release.

Is the press release considered filed or furnished?

The press release is furnished and is not deemed filed under the Exchange Act.

What period do the results cover for ATNI (ATNI)?

The results cover the three and nine months ended September 30, 2025.

Who signed the ATNI 8-K and when?

Chief Financial Officer Carlos Doglioli signed the report, dated November 5, 2025.

What is the trading symbol and exchange for ATN International?

The trading symbol is ATNI on The Nasdaq Stock Market LLC.